diff --git a/composer.json b/composer.json
index f932ac94..e4a08086 100644
--- a/composer.json
+++ b/composer.json
@@ -19,25 +19,23 @@
         "php": "^8.2",
         "doctrine/inflector": "^1.4 || ^2.0",
         "nikic/php-parser": "^4.0",
-        "symfony/property-info": "^5.3 || ^6.0",
-        "symfony/serializer": "^5.1 || ^6.0"
+        "symfony/property-info": "^5.4 || ^6.0",
+        "symfony/serializer": "^5.4 || ^6.0"
     },
     "require-dev": {
         "doctrine/annotations": "~1.0",
         "moneyphp/money": "^3.0",
         "phpdocumentor/reflection-docblock": "^3.0 || ^4.0 || ^5.0",
         "phpunit/phpunit": "^8.0",
-        "symfony/filesystem": "^5.3 || ^6.0",
-        "symfony/http-kernel": "^5.3 || ^6.0",
-        "symfony/uid": "^5.2 || ^6.0"
+        "symfony/filesystem": "^5.4 || ^6.0",
+        "symfony/http-kernel": "^5.4 || ^6.0",
+        "symfony/uid": "^5.4 || ^6.0"
     },
     "suggest": {
         "doctrine/annotations": "Docblock Annotations Parser",
         "phpdocumentor/reflection-docblock": "Allow to extract informations from PHP Doc blocks"
     },
     "conflict": {
-        "symfony/serializer": "<4.2",
-        "symfony/property-info": "5.1.6 || 5.1.7",
         "nikic/php-parser": "<4.0.4"
     },
     "autoload": {
diff --git a/tests/Fixtures/Bar.php b/tests/Fixtures/Bar.php
index 2f615c87..464b081d 100644
--- a/tests/Fixtures/Bar.php
+++ b/tests/Fixtures/Bar.php
@@ -10,9 +10,8 @@ class Bar
 {
     /**
      * @var int|null
-     *
-     * @Groups({"group2", "group3"})
      */
+    #[Groups(['group2', 'group3'])]
     private $id;
 
     public function getId(): ?int
diff --git a/tests/Fixtures/Foo.php b/tests/Fixtures/Foo.php
index cae192c0..3ad72e39 100644
--- a/tests/Fixtures/Foo.php
+++ b/tests/Fixtures/Foo.php
@@ -10,9 +10,8 @@ class Foo
 {
     /**
      * @var int
-     *
-     * @Groups({"group1", "group2", "group3"})
      */
+    #[Groups(['group1', 'group2', 'group3'])]
     private $id = 0;
 
     public function getId(): int
diff --git a/tests/Fixtures/FooIgnore.php b/tests/Fixtures/FooIgnore.php
index ebd7bb53..b3e94d30 100644
--- a/tests/Fixtures/FooIgnore.php
+++ b/tests/Fixtures/FooIgnore.php
@@ -10,9 +10,8 @@ class FooIgnore
 {
     /**
      * @var int
-     *
-     * @Ignore
      */
+    #[Ignore]
     public $id;
 
     public function getId(): int
diff --git a/tests/Fixtures/FooMaxDepth.php b/tests/Fixtures/FooMaxDepth.php
index e56769e1..5a37fa97 100644
--- a/tests/Fixtures/FooMaxDepth.php
+++ b/tests/Fixtures/FooMaxDepth.php
@@ -15,9 +15,8 @@ class FooMaxDepth
 
     /**
      * @var FooMaxDepth|null
-     *
-     * @MaxDepth(2)
      */
+    #[MaxDepth(2)]
     private $child;
 
     public function __construct(int $id, ?self $child = null)
diff --git a/tests/Fixtures/Pet.php b/tests/Fixtures/Pet.php
index f1b5aa55..50347c08 100644
--- a/tests/Fixtures/Pet.php
+++ b/tests/Fixtures/Pet.php
@@ -6,13 +6,11 @@
 
 use Symfony\Component\Serializer\Annotation\DiscriminatorMap;
 
-/**
- * @DiscriminatorMap(typeProperty="type", mapping={
- *    "cat"="AutoMapper\Tests\Fixtures\Cat",
- *    "dog"="AutoMapper\Tests\Fixtures\Dog",
- *    "fish"="AutoMapper\Tests\Fixtures\Fish"
- * })
- */
+#[DiscriminatorMap(typeProperty: 'type', mapping: [
+    'cat' => Cat::class,
+    'dog' => Dog::class,
+    'fish' => Fish::class,
+])]
 abstract class Pet
 {
     /** @var string */
diff --git a/tests/Fixtures/Transformer/ArrayToMoneyTransformer.php b/tests/Fixtures/Transformer/ArrayToMoneyTransformer.php
index 54928f54..65432063 100644
--- a/tests/Fixtures/Transformer/ArrayToMoneyTransformer.php
+++ b/tests/Fixtures/Transformer/ArrayToMoneyTransformer.php
@@ -21,9 +21,6 @@
  */
 final class ArrayToMoneyTransformer implements TransformerInterface
 {
-    /**
-     * {@inheritdoc}
-     */
     public function transform(Expr $input, Expr $target, PropertyMapping $propertyMapping, UniqueVariableScope $uniqueVariableScope): array
     {
         return [new Expr\New_(new Name\FullyQualified(Money::class), [
@@ -34,17 +31,11 @@ public function transform(Expr $input, Expr $target, PropertyMapping $propertyMa
         ]), []];
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function getDependencies(): array
     {
         return [];
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function assignByRef(): bool
     {
         return false;
diff --git a/tests/Fixtures/Transformer/MoneyToArrayTransformer.php b/tests/Fixtures/Transformer/MoneyToArrayTransformer.php
index 11a08d67..a3f42c2b 100644
--- a/tests/Fixtures/Transformer/MoneyToArrayTransformer.php
+++ b/tests/Fixtures/Transformer/MoneyToArrayTransformer.php
@@ -18,9 +18,6 @@
  */
 final class MoneyToArrayTransformer implements TransformerInterface
 {
-    /**
-     * {@inheritdoc}
-     */
     public function transform(Expr $input, Expr $target, PropertyMapping $propertyMapping, UniqueVariableScope $uniqueVariableScope): array
     {
         $moneyVar = new Expr\Variable($uniqueVariableScope->getUniqueName('money'));
@@ -31,17 +28,11 @@ public function transform(Expr $input, Expr $target, PropertyMapping $propertyMa
         ]];
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function getDependencies(): array
     {
         return [];
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function assignByRef(): bool
     {
         return false;
diff --git a/tests/Fixtures/Transformer/MoneyToMoneyTransformer.php b/tests/Fixtures/Transformer/MoneyToMoneyTransformer.php
index 29eadc22..1a3bb747 100644
--- a/tests/Fixtures/Transformer/MoneyToMoneyTransformer.php
+++ b/tests/Fixtures/Transformer/MoneyToMoneyTransformer.php
@@ -20,9 +20,6 @@
  */
 final class MoneyToMoneyTransformer implements TransformerInterface
 {
-    /**
-     * {@inheritdoc}
-     */
     public function transform(Expr $input, Expr $target, PropertyMapping $propertyMapping, UniqueVariableScope $uniqueVariableScope): array
     {
         return [
@@ -36,17 +33,11 @@ public function transform(Expr $input, Expr $target, PropertyMapping $propertyMa
         ];
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function getDependencies(): array
     {
         return [];
     }
 
-    /**
-     * {@inheritdoc}
-     */
     public function assignByRef(): bool
     {
         return false;
diff --git a/tests/Fixtures/Transformer/MoneyTransformerFactory.php b/tests/Fixtures/Transformer/MoneyTransformerFactory.php
index 77ad41f4..dfad38f4 100644
--- a/tests/Fixtures/Transformer/MoneyTransformerFactory.php
+++ b/tests/Fixtures/Transformer/MoneyTransformerFactory.php
@@ -15,9 +15,6 @@
  */
 final class MoneyTransformerFactory extends AbstractUniqueTypeTransformerFactory
 {
-    /**
-     * {@inheritdoc}
-     */
     protected function createTransformer(Type $sourceType, Type $targetType, MapperMetadataInterface $mapperMetadata): ?TransformerInterface
     {
         $isSourceMoney = $this->isMoneyType($sourceType);
diff --git a/tests/Fixtures/UserWithYearOfBirth.php b/tests/Fixtures/UserWithYearOfBirth.php
index 90f171e6..46b90546 100644
--- a/tests/Fixtures/UserWithYearOfBirth.php
+++ b/tests/Fixtures/UserWithYearOfBirth.php
@@ -9,24 +9,21 @@
 class UserWithYearOfBirth
 {
     /**
-     * @Groups({"read"})
-     *
      * @var int
      */
+    #[Groups('read')]
     private $id;
 
     /**
-     * @Groups({"read"})
-     *
      * @var string
      */
+    #[Groups('read')]
     public $name;
 
     /**
-     * @Groups({"read"})
-     *
      * @var string|int
      */
+    #[Groups('read')]
     public $age;
 
     public function __construct($id, $name, $age)
@@ -36,9 +33,7 @@ public function __construct($id, $name, $age)
         $this->age = $age;
     }
 
-    /**
-     * @Groups({"read"})
-     */
+    #[Groups('read')]
     public function getYearOfBirth()
     {
         return ((int) date('Y')) - ((int) $this->age);